Re-capitulation of Season one and OAD.
If did you watched the first TV series not much to say. It is just a resume of what did you have watched then, + the ODA.
to put you ready for next Season starting January 2021.
Didn't you watched it yet? What are you doing reading this!? you must start watching it at once!.
This is a recap. Watch it if you can't remember what happen last season. But for the most part, you won't gain anything from this one.